Have you upgraded to Cassandra 4.0?

If you’re a current Cassandra user, upgrading to the latest releases can be fairly simple and requires no downtime. The post Have you upgraded to Cassandra 4.0? appeared first on foojay. | Continue reading


@foojay.io | 1 year ago

Detecting, Investigating and Verifying Fixes for Security Incidents and Zero Day Issues Using Lightrun

Learn about major milestones in app security: finding the issue, evaluating a breach, proving it, and validating the fix! The post Detecting, Investigating and Verifying Fixes for Security Incidents and Zero Day Issues Using Lightrun appeared first on foojay. | Continue reading


@foojay.io | 1 year ago

Vaadin and jOOQ: Match Made in Heaven

Quickly learn how easy it is to create data-centric web applications with the combination of Vaadin and jOOQ! | Continue reading


@foojay.io | 1 year ago

Hilla 1.0: A new Frontend Framework for SpringBoot

Hilla enables type-safe communication between SpringBoot backends and TS frontend. Integrated tooling and components help you build apps fast! | Continue reading


@foojay.io | 1 year ago

Java Bytecode Simplified: Journey to the Wonderland (Part 1)

Today I will make an attempt to appreciate how unique the JVM is. So, let’s begin the journey to how Java works! | Continue reading


@foojay.io | 1 year ago

Alternatives to DTO

I used to believe (and still do) that DTOs should be a thing of the past. Yet, it seems their usage is still widespread. | Continue reading


@foojay.io | 1 year ago

Journeys in Java, Level 3: Building an Empire of Microservices

Let’s continue our journey to learn microservice. Today we will learn to use a full-fledged MongoDB database running in a Docker container. | Continue reading


@foojay.io | 1 year ago

The Serverless Database You Really Want

This article argues how Apache Cassandra is the Serverless database that is open and free as in freedom in the modern cloud era. | Continue reading


@foojay.io | 1 year ago

Why Pulsar Beats Kafka for a Scalable, Distributed Data Architecture

This article argues why Apache Pulser is better than Apache Kafka when it comes to using cloud and microservices and how it fits the open-source mindset. | Continue reading


@foojay.io | 1 year ago

Debugging Tutorial: Java Return Value, IntelliJ Jump to Line and more

Posted two new videos in the "140 Second Duckling" series. They cover some basic and some little-known features of debuggers. Such as Marking | Continue reading


@foojay.io | 1 year ago

Java Thread Programming (Part 14)

What happens if the child-task creates more tasks and the parent-task waits for the child-tasks to finish in TheadPool in java. | Continue reading


@foojay.io | 1 year ago

Kover : Code Coverage plugin for Kotlin

Kover is a code coverage tool for Kotlin. It's still in incubator phase but I took it for a spin and it is already very useful as part of local or CI workflows! In this article I go through the setup and some of my favourite goodies of the tool. | Continue reading


@foojay.io | 1 year ago

Avoiding Stringly-typed in Kotlin

It is more beneficial to use sealed and value class instead of enumerations in Kotlin; let’s find out why. | Continue reading


@foojay.io | 1 year ago

Introducing KoolKits: OSS Debugging Toolkits for Kubernetes

New OSS approach for debugging live applications - right from inside your IDE or terminal window, and without stopping the live application. | Continue reading


@foojay.io | 1 year ago

Measuring Time and Duration in Kotlin

The DurationAPI is coming out of its experimental stage and offers a nice DSL to easily work with time durations. | Continue reading


@foojay.io | 1 year ago

Save hours on your setup of K8ssandra with the new config builder

foojay is the place for all OpenJDK Update Release Information. Learn More. | Continue reading


@foojay.io | 1 year ago

Project Panama for Newbies (Part 4)

imagine C code capable of performing a computation and after its completion the C code will notify Java code to perform updates to JavaFX UI. | Continue reading


@foojay.io | 1 year ago

Use git bisect to Pinpoint a Bug

I had read about git bisect a few times and figured that this time, I would use that tool to find an annoying bug. | Continue reading


@foojay.io | 1 year ago

Jakarta Concurrency: Present and Future

Jakarta Concurrency is a small, but fundamental, specification in the Jakarta EE umbrella. As project lead, I provide more information on it. | Continue reading


@foojay.io | 1 year ago

Enter the Cloud Native Dojo: Blackbelt-Level Debugging

In this article, I want to go over three challenges we face when debugging modern applications: polyglot, unreproducible, data pollution. | Continue reading


@foojay.io | 1 year ago

Java on Visual Studio Code Update: February 2022

Hi everyone, welcome to the February update of Visual Studio Code Java and this time we have a special edition for education! | Continue reading


@foojay.io | 1 year ago

Hand Ground Coffee: Command Line Tools for Java

I prefer the command line for my daily work, using the combination of git, sed, grep, bash commands etc. makes recurring tasks easier. | Continue reading


@foojay.io | 1 year ago

Controlling Electronics with JBang on the Raspberry Pi

JBang is a great way to create your first program to control electronic components connected to the Raspberry Pi's GPIO pins. | Continue reading


@foojay.io | 1 year ago

7 Ways to Improve Your Code Reading Skills

As more and more companies go Agile, being able to read other's code is more important than ever. Read on for some tips on how to improve this skill. | Continue reading


@foojay.io | 1 year ago

The Critical Role Streaming Plays in a Data Stack

Why Apache Pulsar and its support for streaming data is the right choice for multi-datacenter, geo-distributed deployments. | Continue reading


@foojay.io | 1 year ago

System Logger

Almost all Java developers are familiar with logging frameworks like Log4j, but not the System.Logger that has been available since java 9. | Continue reading


@foojay.io | 1 year ago

Foojay at FOSDEM 2022 on YouTube

Last weekend, FOSDEM 2022 was held, with the friends of OpenJDK putting together an awesome program on the tools and editors around OpenJDK. | Continue reading


@foojay.io | 1 year ago

Journeys in Java, Level 2: Building an Empire of Microservices

Let's dive into the world of microservices find out the complexities, best practices, and troubles. I will share all my learnings, as well! | Continue reading


@foojay.io | 1 year ago

Playing practically with Stream API

Let’s learn java stream API with a few practical examples. | Continue reading


@foojay.io | 1 year ago

Cassandra Database Migration to Kubernetes with Zero Downtime

foojay is the place for all OpenJDK Update Release Information. Learn More. | Continue reading


@foojay.io | 1 year ago

Building Reactive Java Applications with Spring Framework

Pretty much all Java developers are familiar with Spring Pet Clinic. Let's get to know the reactive implementation of it. | Continue reading


@foojay.io | 1 year ago

Introducing 140 Second Ducklings: What is Debugging?

I’m launching a new Twitter video series that will focus on teaching the concepts of debugging (and other concepts) in small video bites | Continue reading


@foojay.io | 1 year ago

Backpressure in Reactive Systems

Considering a fast data producer and a slow data consumer, backpressure "pushes back" on the producer, not to be overwhelmed by data. | Continue reading


@foojay.io | 1 year ago

Full Stream Ahead: Astra Streaming, Powered by Apache Pulsar

foojay is the place for all OpenJDK Update Release Information. Learn More. | Continue reading


@foojay.io | 1 year ago

Debugging RAM: Detect/Fix Memory Leaks in Managed Languages – Heap Deep Dive (Part 2)

Java and JavaScript are garbage collected languages. But memory leaks can still plague them. How to avoid, detect, and fix heap problems? | Continue reading


@foojay.io | 1 year ago

Building Scalable Streaming Applications with DataStax Astra Streaming

DataStax Astra Streaming with a step-by-step tutorial that illustrates how it can be used to easily build scalable, streaming applications. | Continue reading


@foojay.io | 1 year ago

SQL vs. NoSQL: Pros & Cons

What’s the best way to store, protect and access your data? This is a fundamental, yet critical decision. Find out more on Foojay.io Today! | Continue reading


@foojay.io | 1 year ago

Java Thread Programming (Part 13)

What is the maximum number of worker threads we can put in a ThreadPool? Let's find out today on Foojay's amazing Java threading series! | Continue reading


@foojay.io | 1 year ago

Installing Java with SDKMAN on Raspberry Pi

Java on Raspberry Pi has always been possible, but SDKMAN makes the getting-started process a lot easier. It's as easy as pi... | Continue reading


@foojay.io | 1 year ago

Deploying to Multiple Kubernetes Clusters with the K8ssandra Operator

Let’s learn about the new K8ssandra Operator that simplifies deploying multiple Apache Cassandra data centers in different regions | Continue reading


@foojay.io | 1 year ago

GoF Design Patterns Using Java – Part 02

Let's continue learning design patterns by implementing the Adapter, Facade, Template, Iterator, and State patterns using Java. | Continue reading


@foojay.io | 1 year ago

Video: SDKMAN Explained

One of the highlights of the Friends of OpenJDK room at FOSDEM 2021 was Marco Vermeulen, the creator of SDKMAN, talking about SDKMAN. | Continue reading


@foojay.io | 1 year ago

Backing up K8ssandra with MinIO

foojay is the place for all OpenJDK Update Release Information. Learn More. | Continue reading


@foojay.io | 1 year ago

Lights, Camera, Action: GitHub Actions with Java (Part 3)

The Java GitHub Actions that rules them all! Third and final instalment of Lights, Camera, Action: GitHub Actions with Java | Continue reading


@foojay.io | 1 year ago

Friends of OpenJDK at FOSDEM with Prizes

A great line up of known and less known OpenJDK users from the Foojay community will be at FOSDEM, with a quiz and awesome prizes to be won. | Continue reading


@foojay.io | 1 year ago

Create a CRUD UI in Pure Java

Many developers struggle with writing a web UI, but it becomes absolute fun if we could do it with pure java; let's find out how. | Continue reading


@foojay.io | 1 year ago

Four Reasons Why Apache Pulsar is Essential to the Modern Data Stack

Messaging has been on DataStax’s radar for several years regarding microservices-based architectures. Let’s learn the top reasons why we should consider Apache Pulsar. | Continue reading


@foojay.io | 1 year ago

Unboxing K8ssandra: The Data Layer For Your Kubernetes-Powered Applications

foojay is the place for all OpenJDK Update Release Information. Learn More. | Continue reading


@foojay.io | 1 year ago